JPS6496B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a roll wear detection device in a rice hulling device.

(Prior art) In the conventionally known Japanese Utility Model Application Publication No. 57-35863, a movable rotary rubber roll is provided in the vicinity of a fixed rotary rubber roll, and the movable rotary rubber roll is connected to a coil spring whose elasticity can be adjusted on the outer periphery of a shaft rod. A rice hulling device is described in which a rice huller is attached to a fixed rotating rubber roll.

(Problems to be Solved by the Invention) In the known method, a movable rotating rubber roll can be made to impact on a fixed rotating rubber roll via an elastically adjustable coil spring provided on the outer periphery of a shaft rod.
It is not possible to detect wear of the rubber roll.

The present invention makes this possible.

(Means for Solving the Problem) Therefore, the present invention provides a movable rotary rubber roll 12 in the vicinity of the fixed rotary rubber roll 2, and the movable rotary rubber roll 12 is equipped with a coil spring 28 provided on the outer periphery of the shaft rod 14 and capable of elasticity adjustment. In the hulling device, which is attached to a fixed rotating rubber roll 2 through a
The tip of the shaft rod 14 projects through the through hole 13 of the swinging arm 10 of the movable and rotating rubber roll 12, and when the shaft rod 14 moves back and forth, the coil spring 28 causes the shaft rod 14 to move forward and backward. A cam body 16 is provided on the protrusion so as to move the movable rotating rubber roll 12, and the shaft rod 14
Rotating rubber roll 1 moves to fixed rotating rubber roll 2
The roll wear detection device in the rice hulling device is configured such that the roll wear detection switch 20 provided on the movable rotating rubber roll 12 side is brought into contact with the cam body 16. It is.

(Embodiment) To explain with the drawings, reference numeral 1 denotes a fixed shaft attached to a case 31, and a fixed rotary roll 2 made of rubber or synthetic resin is fixed to the fixed shaft 1 so as to freely rotate only. 3 is a rice hopper that supplies unhulled rice;
A feed-in roll 5 is mounted on a shaft at the feed-out port 4. 6
is a detection body that detects the presence or absence of unhulled rice in the hopper 3,
7 is a switch that is turned on and off by the detection body 6. 8 is a control valve for the feeding amount;
It can be viewed from any distance.

The upper end of a swing arm 10 is pivotally supported on the shaft 9 of the feed roll 5, and a moving shaft 11 is attached to the lower part of the arm 10. A moving rotation roll 12 made of rubber or synthetic resin is fixed to the moving shaft 11 . A through hole 1 is provided in the lower part of the swinging arm 10 in the swinging direction of the swinging arm 10.
3 is formed, and a horizontal shaft rod 14 is formed in the through hole 13.
One end passes through, and the protruding end 15 has a through hole 13.
A cam body 16 whose diameter becomes smaller as it gets farther away is fixed.

An adjustment screw 19 that projects parallel to the cam body 16 is mounted on the lower end 18 of the swing arm 10, and a wear detection switch 20 is screwed onto the screw 19. Reference numeral 21 denotes an operating rod of the wear detection switch 20, which comes into contact with the outer surface of the cam body 16. 17 is the large diameter side of the cam body 16. A threaded portion 22 is formed on the other side of the shaft rod 14, and the threaded portion 2
A rolling wheel 23 that can be rotated manually is screwed onto 2. The wheel 23 is attached to the case 31 so that it can only rotate freely.

A forward/reverse motor 24 is provided near the wheel 23, and its sprocket 25 and the wheel 23
Hang the chain 26 between. The shaft rod 14
A seat plate 27 is screwed between the lower end 18 of the swinging arm 10 and the wheel 23 on the outer surface of the swing arm 10, and the other end of the coil spring 28, one end of which is in contact with the seat plate 27, is connected to the washer 29.
The lower end portion 18 of the swinging arm 10 is brought into contact with the lower end portion 18 of the swinging arm 10 via.
30 is a gap between the lower end 18 of the swing arm 10 and the large diameter side 17.

The forward and reverse rotation motor 24 is operated by a wear detection switch 20 which is turned on and off by the switch 7 of the hopper 3 and the cam body 16 of the protruding end 15 of the shaft rod 14.
Both rotate when they are ON, and stop when they are OFF.

(effect) Next, the action will be described.

When the on-off valve of the hopper 3 is opened, the hopper 3
Since the unhulled rice inside falls and collides with the detection body 6, the switch 7 is turned on to energize the motor 24, which rotates the wheel 23 via the sprocket 25 and chain 26, and the screw screwed into the wheel 23. The shaft rod 14 is moved to the right in the figure together with the section 22.

Then, the seat plate 27 attached to the shaft rod 14
presses the swinging arm 10 via the coil spring 28, so the swinging arm 10 rotates counterclockwise around the shaft 9, moving the movable rotating roll 12 attached to the swinging arm 10 from the fixed rotating roll 2. Abut against the outside surface.
Since the motor 24 is still energized, the wheel 23 continues to rotate, and the shaft rod 14 contracts the coil spring 28 to protrude outward from the through hole 13, and between the cam body 16 and the lower end 18. A gap 30 is created between the wear detection switch 20 and the wear detection switch 20.
The operating rod 21 contacts the large diameter side 17 of the cam body 16, and the wear detection switch 20 turns OFF, stopping the motor 24 there.

Therefore, the unhulled rice in the hopper 3 is fed out from the feed roll 5 and hulled between the rolls 2 and 12 under the elasticity of the adjusted coil spring 28.

In this case, the elasticity of the coil spring 28 is
The strength can be adjusted by adjusting the position of the wear detection switch 20 by rotating the switch.
The hulling rate can be adjusted.

When there is no unhulled rice in the hopper 3, the hopper 3
Since the unhulled rice inside will not fall and will not collide with the detection body 6, switch 7 is turned OFF and power is applied to the motor 24 via the timer, and the sprocket 2
5 and the wheel 23 through the chain 26,
The shaft rod 14 is moved to the left in the figure together with the threaded portion 22 screwed onto the wheel 23.

Then, the swinging arm 10 rotates clockwise about the shaft 9, and the movable rotating roll 12 attached to the swinging arm 10 is separated from the outer surface of the fixed rotating roll 2 and returned to its original position.

When the rubber rolls wear out, gaps are created between the rolls, so the coil spring 2 is attached to the movable rotating roll 12 side.
8 to move closer to the fixed rotating roll 2, and the wear detection switch 20 moves to the small diameter side of the cam body 16 and turns on, detecting wear.

(Effects) In the conventionally known Japanese Utility Model Application Publication No. 57-35863, a movable rotary rubber roll is provided in the vicinity of a fixed rotary rubber roll, and the movable rotary rubber roll is rotated through a coil spring whose elasticity can be adjusted on the outer periphery of a shaft rod. A rice hulling device is described that is attached to a fixed rotating rubber roll. In the known method, a movable rotating rubber roll can be made to impact on a fixed rotating rubber roll via a coil spring whose elasticity can be adjusted on the outer periphery of a shaft rod, but it is not possible to detect wear of the rubber roll.

However, in the present invention, a movable rotary rubber roll 12 is provided near the fixed rotary rubber roll 2, and the movable rotary rubber roll 12 hits the fixed rotary rubber roll 2 via a coil spring 28 provided on the outer periphery of the shaft rod 14 whose elasticity can be adjusted. In the rice hulling device, the shaft rod 14 is screwed onto the rotating wheel 23.
When the shaft rod 14 rotates, the shaft rod 14 moves forward and backward.
is such that its tip protrudes through the through hole 13 of the swinging arm 10 of the movable rotating rubber roll 12,
A cam body 16 is provided on the protrusion so that when the shaft rod 14 moves back and forth, the movable rotary rubber roll 12 is moved by the coil spring 28.
Reference numeral 4 denotes a hulling device configured to move further after the movable rotary rubber roll 12 comes into contact with the fixed rotary rubber roll 2, and in which the cam body 16 is brought into contact with a roll wear detection switch 20 provided on the side of the movable rotary rubber roll 12. Since the present invention is a roll wear detection device for use in roll wear, it is possible to detect roll wear using the simplest and most rational means.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a state in which the protruding portion does not protrude, and FIG. 2 is a diagram showing a state in which the protruding portion protrudes. Explanation of symbols, 1...Fixed shaft, 2...Fixed rotating roll, 3...Paddy rice hopper, 4...Feeding outlet, 5...
... Loading roll, 6... Sensing object, 7... Switch,
8...Control valve, 9...Shaft, 10...Moving arm, 11...
...Movement axis, 12...Movement rotation roll, 13...Through hole, 14...Shaft rod, 15...Protruding end, 16...
Cam body, 17...Large diameter side, 18...Lower end, 19
... Adjustment screw, 20 ... Wear detection switch, 21
... Operating rod, 22 ... Threaded part, 23 ... Rolling wheel, 2
4... Forward/reverse motor, 25... Sprocket,
26...Chain, 27...Seat plate, 28...Coil spring, 29...Washer, 30...Gap, 31...Case.

Claims (1)

[Claims] 1. A movable rotary rubber roll 12 is provided near the fixed rotary rubber roll 2, and the movable rotary rubber roll 1
Reference numeral 2 denotes a hulling device in which a shaft rod 14 is attached to a fixed rotary rubber roll 2 via an elastically adjustable coil spring 28 provided on the outer periphery of the shaft rod 14, and the shaft rod 14 is screwed onto a rotating wheel 23. 23 moves forward and backward when rotated, and the tip of the shaft rod 14 is connected to the through hole 1 of the swinging arm 10 of the moving and rotating rubber roll 12.
3, and a cam body 16 is provided at the protrusion so that when the shaft rod 14 advances or retreats, the movable rotating rubber roll 12 is moved by the coil spring 28, and the shaft rod 14 is attached to the fixed rotating rubber roll 2. A roll abrasion detection device in a rice hulling device, in which the movable rotary rubber roll 12 is made to move further after contact with the movable rotary rubber roll 12, and a roll abrasion detection switch 20 provided on the movable rotary rubber roll 12 side is brought into contact with the cam body 16. .